Psychorama, also called the precon process, is the act of communicating subliminal information through film by flashing images on the screen so quickly that they cannot be perceived by the conscious mind. It is a subset of subliminal messaging that is applied only through non-verbal messages in film. The name most commonly refers to a "gimmick" in commercial movie production (sometimes using the marketing phrase "filmed in psychorama" as a play on the more common "filmed in Technicolor").